Weather in Le Vieux-Longueuil in September
Le Vieux-Longueuil, Canada averages a high of 20.9°C (69.6°F) and low of 12.7°C (54.9°F) in September, with 10 rain days and 9.2 hours of daily sunshine. Travel score: 76.7/100 (Good). The best time to visit Le Vieux-Longueuil is August.
High
21°C70°F
Low
13°C55°F
🌧️
10
rain days
☀️
9.2
hrs/day sunshine
💧
75%
humidity
77— Good
September in Le Vieux-Longueuil is mild and occasionally wet — good for most activities.
What are the average temperatures in Le Vieux-Longueuil?
How much does it rain in Le Vieux-Longueuil in September?
Le Vieux-Longueuil receives an average of 94.3mm of rainfall across 10 rainy days in September. The annual total is 1076.8mm.
What should I pack for Le Vieux-Longueuil in September?
Essentials
👟
Comfortable walking shoes
Essential for exploring the city
🧥
Mix of light and warm layers
Mild temperatures around 21°C
🧴
Sunscreen SPF 30+
9 hours of sunshine daily
🕶️
Sunglasses
Protect your eyes from bright sun
Recommended
🧥
Light rain jacket
Some rainy days expected (10 days)
☔
Umbrella
Be prepared for occasional showers
Traveling to Canada in September?
Don't let a public holiday surprise you — restaurants, shops, and attractions may be closed.
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Data based on 1994–2024 averages · Last updated: 2024-12-31